User interface documentation needed

The Multi-series charts are the least tested of the graph types. I have put in some data validation and data reshaping routines into the latest release which should make it easier and more robust when entering data.
P/S stand for Primary or Secondary axis. Enter 'P' of the data should be shown on the primary axis 'S' to show in on the secondary axis.

Attached is a sample chart and corresponding data which you can use as an example. I will get around to documenting this properly one day ;-)

and, in the code? I have this code:

function fusioncharts_example3() {
  return theme('fusionchart', 'example3');
}

function example3_fusionchart_callback($args = NULL) {

$info->query = "SELECT a.universidad as series, a.categoria as category, AVG(a.frecuencia)*2 as value, AVG(b.frecuencia)*2 as mediab, a.frecuencia as axis FROM proyectos.profesores as a INNER JOIN proyectos.profesores as b on a.universidad = b.universidad where a.fecha <='2006-2007' GROUP BY series, category"; 

  $info->chart_type = 'Multi-series Column 3D + Line - Dual Y Axis';
  $info->settings = array('Caption' => 'Principales países con los que colaboran las instituciones españolas', 'showvalues' => '0', 'showNames' => '1', 'formatNumberScale' => '0', 'formatNumber' => '0', 'showDivLineValue' => '1', 'rotateNames' => '1');
$info->attributes = array(
); 
  $info->width = 800;
  $info->height = 500;
  return $info;
}

print theme('fusionchart', 'example3');

How can i define the 'P' or 'S' axis?

Thanks!!

It's possible to do a Dual axis chart from a SQL query I'm afraid. Try selecting the data, processing it, then return it as $info->data. Checkout the fusioncharts.test module for an example.

I've updated the documentation on how to construct the data attribute for all charts also.